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Finding the Fourth Proportional to 285,448.08, 428,232.24 and 107,951.16

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Solution

The fourth proportional to 285,448.08, 428,232.24 and 107,951.16 is: 161,949.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,448.08 : 428,232.24 = 107,951.16 : x
  2. Step 2: Convert to fraction form
    285,448.08/428,232.24 = 107,951.16/x
  3. Step 3: Cross multiply
    285,448.08x = 428,232.24 × 107,951.16
  4. Step 4: Simplify right side
    285,448.08x = 46,228,167,057.40
  5. Step 5: Solve for x
    x = 46,228,167,057.40/285,448.08
  6. Step 6: Final answer
    x = 161,949.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.